Ntinga has seen sales rocket by 65% this year, the company has revealed. The family business, headed by managing director Howard Graham (pictured in his Professional Jeweller Hot 100 profile with his wife Carolyn) specialises in diamonds and fine jewellery from its North London headquarters.

The company distributes to the whole of the UK and, increasingly, to Europe.

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Ntinga is using next week’s Houlden Summer Getaway to launch this season’s catalogue featuring its newest collection of chocolate coloured and yellow diamond jewellery.

The company will also introduce a range of new mini displays and ring cases alongside the chocolate jewellery collection.

The Houlden Summer Getaway takes place 23 to 25 June 2015 at the East Sussex National Golf and Spa Resort.

The event kicks off with a member’s day with presentations by Houlden CEO Stuart Laing, Laurence Brannagan from Movado and Gordon Sutcliffe from V12 Retail Finance.

Day two is all about old school social networking – on the golf club and in the spa – while the third day is a suppliers’ exhibition.

Ntinga will be present throughout the event meeting Houlden retailers.